Answer:
D
Explanation:
i think that's the answer
Answer:
b. all three pathogens are obligate anaerobes.
Explanation:
Tetanus is caused by an <u>exotoxin</u> produced by the bacterium <em>Clostridium tetani</em>, which is normally f<u>ound in the soil</u>, although it may be present in the intestines of mammals. It is an <u>anoxic and spore-forming bacteria</u>. It enters the body through wounds or deep punctures, finding in the wound the anoxic conditions to germinate its spores, producing its potent toxin.
Anthrax is caused by the bacterium <em>Bacillus anthracis</em>, which is a stationary and <u>endospore-forming </u>bacteria that is resistant to high temperatures and chemicals. It is a <u>strictly aerobic</u> bacterium and can be <u>found naturally in the soil</u>. Both animals and humans can breathe or ingest spores of this bacterium by consuming meat or contaminated water. When spores get into the body, their turn into active cells and <u>produce exotoxins</u>
Botulism is caused by the pathogen <em>Clostridium botulinum</em>, a s<u>trict anaerobic</u> bacillus, producing <u>endospores and 8 different types of toxins</u>. Being a <u>soil-borne bacterium</u>, it usually appears in the food of animal and vegetable origin.
Estuaries are the most productive of all marine ecosystems. They are located where the river meets the sea. The San Francisco Bay is a popular estuary.
Answer:
known as a system...
Explanation:
digestive system, pulmonary ststem,,....etc.